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Comment Think of the naysayers! (Score 2) 305

Funny how this pops up and most of the comments are immediately pointing out obvious problems that everyone would have thought about. It's a proof of concept, and as a concept this is a seriously good one. Yes there's issues with pedestrians, and with cars not enrolled, but there's ways to manage and work around those. Intersections like these are the way of the future, as are autonomous vehicles. Driving a car is going to go the same way as riding a horse - a hobby activity not an every-day thing.

Comment Re:Moving off-planet doesn't guarantee survival (Score 1) 151

You can't solve a Malthusian crisis by flying people off-planet in rockets. They breed faster than you can launch the rockets, and the rockets require far too much resource / energy to fly off.

Maybe achievable with a space elevator, but you still need somewhere to go to. The resources creating those places to go to are immense.

The only realistic cure for a Malthusian crisis are either birth control, or mass population loss.

Comment Re:The New Invasive Species (Score 5, Interesting) 231

Koalas have no reason to have much brain power.

Koalas aren't good eating - they're toxic because they're full of eucalyptus oil. So they don't need to avoid predators. They eat one thing, so all they need the brains for is to find the thing and eat it.

Having a large, metabolically active brain would be a bad thing for a koala because the food they eat is so low on nutrition they'd be wasting energy running it.

There's selective pressure *away* from having brain power.

Comment This doesn't make sense (Score 1) 262

Cancer happens in cells that generally aren't germ-line cells, that is apart from testicular and ovarian cancers. (and many of those are stromal cells, not germ-line)

There's no evolutionary advantage in killing someone with bowel cancer. Those faulty genes wouldn't be passed on. It just doesn't make sense.

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